Induction Balance Metal Detector |
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This is a basic amplitude-type induction balance metal detector, no ground balance, no discriminate mode, nothing fancy. It was published as "Project 549" in the February, 1977 issue if ETI, a popular electronics magazine that is owned by UK publisher Wimbourne Publishing, Ltd.
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ETI 549 Metal Detector (PDF-1162K, 300dpi) ETI 549 Metal Detector (PDF-424K, 150dpi) |
Comments from people who have built this project:
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